/Engine/Source/Runtime/Core/Public/Math/UnrealMathUtility.h
Operators and precedence: 1:+- 2:/% 3:* 4:^ 5:&| Unary: - Types: Numbers (0-9.), Hex ($0-$f) Grouping: ( )
1 if successful, 0 if equation fails.
static bool Eval ( [FString](API\Runtime\Core\Containers\FString) Str, float & OutValue )